The Central American Economic Council, the group’s chief policy-making organ, meets every three months. Composed of economic ministers, it coordinates regional economic integration. The council elects a secretary-general, who serves a three-year term.

The CACM was formed in response to the need of member countries to cooperate with each other to attract industrial capital and diversify their economies. By the late 1960s the CACM had made considerable progress in expanding commerce and manufacturing in the region. Many trade barriers between its member states were eliminated or reduced, and between 1961 and 1968 trade among them increased to a figure seven times its previous level. In 1969, however, Honduras and El Salvador broke off commercial and diplomatic relations during their so-called “Soccer War.” After blocking El Salvador’s access to the Pan-American Highway, Honduras virtually withdrew from the CACM in early 1971 and imposed tariffs on imports from the other common-market countries. Despite growing discontent, the other members agreed to continue the CACM until Guatemala imposed many restrictions on regional trade in 1983. Because of internal political instability and violence in some member countries and mounting debt and protectionist pressures, the CACM suspended its activities in the mid-1980s.

Adopting a Central American Integration system to coordinate political and economic policies, the CACM renewed its activity in the 1990s. By 1993, El Salvador, Guatemala, Honduras, and Nicaragua had ratified a new Central American Free Trade Zone (Costa Rica signed the agreement later), which committed them to reducing intraregional trade tariffs gradually over a period of several years, though implementation was subsequently delayed. In 1996 CACM adopted the System of Electric Interconnection to link regional power supplies. The following year it revived integration efforts by adopting various reforms—including placing its 32 integration offices under the control of the secretary-general—and by entering into negotiations with Panama to create a free-trade area.